Greg bought 2 box of balloon. He half to decorate is yard. He use 40 to decorate his front porch. How many balloons did he use to decorate inside

Question

Greg bough 2 box of balloons. He use half to decorate his yard. He used 40 to decorate his porch. How much did he used to decorate inside

Answer 1

If N is the number of balloons per box.

He had 2N to start

He used half to decorate the yard leaving N balloons.

Then he used 40 balloons to decorate the porch.

He had N-40 balloons left to decorate inside the house.

Answer 2

------------------------------------------------------------------------- My apologies for the typo; N*2*1/2 - 40 = N-40 ------------------------------------------------------------------------